Amethyst and powder crystal are about the same price.

First of all, it is not recommended to buy anything below 100 yuan.

Secondly, the certificate is not so reliable. You'd better look at the buyer's comments, especially the bad reviews, and then look at the pictures, which are as clear as glass and basically fake. Amethyst and pink crystal, some colors are fake, I can see that (how to tell the difference between fake and fake is beyond teaching). The crystal stone will have a little cotton wool and cracks.

Amethyst and powder crystal are about 150 to 200, which is very good. I don't think it is necessary to buy anything cheaper or more expensive. I haven't bought any hair crystals, but I suggest you choose two or three hundred to buy a string of good hair crystals.

It is not a question of money to buy real or fake. What is important is that it is almost crystal or fake, which not only can not bring positive energy to the body, but also may have harmful radiation. Therefore, it is recommended not to buy tens of dollars, but it also depends on the details. If you buy a 6mm powder crystal or amethyst, about 100 yuan will be enough.

Obsidian will be cheaper, there is no need to buy expensive, because obsidian is cheap. It is suggested to choose a price between 50- 150, but in fact, a few tens is almost enough.

I am not an expert, nor a seller, but a crystal lover. I've studied it and bought a lot. This is my personal experience.

In addition, white crystal is the cheapest of all crystals, but I don't recommend buying below 40 yuan.